/* writing.css · P23's own layout and the parts of a docs program the design
   system does not have, on its tokens: the documents' shell, the toolbar's
   groups, the sheet of the page, the block handle, comment and search marks,
   suggestions in the author's color, images, mentions, page breaks, the table
   of contents, the view settings and the print stylesheet. Every control is a
   design system component; nothing here restyles one. */

:root {
  --z23-color-gray-swatch: var(--ink-3); --z23-color-red-swatch: var(--label-red-fg); --z23-color-orange-swatch: var(--label-orange-fg);
  --z23-color-green-swatch: var(--label-green-fg); --z23-color-blue-swatch: var(--label-blue-fg); --z23-color-purple-swatch: var(--label-violet-fg);
  --z23-highlight-yellow-swatch: var(--label-yellow-dot); --z23-highlight-green-swatch: var(--label-green-dot); --z23-highlight-blue-swatch: var(--label-blue-dot);
  --z23-highlight-pink-swatch: var(--label-magenta-dot); --z23-highlight-gray-swatch: var(--ink-4);
  --z23-tone-blue-dot: var(--label-blue-dot); --z23-tone-green-dot: var(--label-green-dot); --z23-tone-purple-dot: var(--label-violet-dot); --z23-tone-clay-dot: var(--label-orange-dot);
}
.z23 { flex: 1 1 auto; min-height: 0; height: 100%; }
.z23 > [data-r="sidebar"] { min-height: 0; }
.z23-work { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.z23-paper { flex: 1 1 auto; }
/* the status line is the page's bottom row, inside its frame */
.z23-bottom { grid-column: 1 / -1; display: flex; border-top: var(--px) solid var(--line-1); }
.z23-bottom > [data-r="status-bar"] { flex: 1 1 auto; }
.z23-bottom:has([data-status="off"]) { display: none; }
/* a toast stands above the status line, not over it */
body:has(.z23) [data-r="toasts"]:not([data-static]) { bottom: calc(var(--status-bar) + 24px + env(safe-area-inset-bottom, 0px)); }
.z23-paper > [data-r="page"] { flex: 1 1 auto; min-height: 0; }
#app[data-embed] .z23-paper { margin: 0; border-radius: 0; }

/* the documents */
.z23-docs { display: flex; flex-direction: column; gap: 8px; min-height: 0; }
.z23-doc-list { display: flex; flex-direction: column; gap: 1px; }
.z23-doc-list > [data-r="sidebar-section"] { margin-top: 8px; }
.z23-doc-list > [data-r="sidebar-item"] > [data-part="label"] { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.z23-doc-empty { margin: 4px 8px; color: var(--ink-3); font-size: var(--fs-12); line-height: var(--lh-12); }
.z23-me { display: flex; align-items: center; gap: 8px; height: var(--row-28); padding: 0 8px; color: var(--ink-2); }
.z23-me-name { font-size: var(--fs-13); line-height: var(--lh-13); font-weight: var(--fw-500); }
[data-r="sheet"] .z23-docs { padding: 0 4px; }

/* the header and the toolbar under it */
.z23-toolbar-bar { container: z23tools / inline-size; }
.z23-tools { width: 100%; min-width: 0; }
.z23-group { display: inline-flex; align-items: center; gap: 2px; flex: none; }
.z23-group[hidden] { display: none; }
@container z23tools (min-width: 600px) { .z23-group[data-group="style"] > [data-r="select"], .z23-group[data-group="mode"] > [data-r="select"] { min-width: 112px; } }
.z23-people { display: inline-flex; align-items: center; gap: 2px; }
.z23-people > button { display: inline-flex; padding: 0; border: 0; border-radius: var(--r-round); background: none; }
.z23-people > button:focus-visible { outline: none; box-shadow: var(--ring-inline); }
/* the toolbar keeps to one row: as it gets narrower the least used groups go, and the More menu has them */
@container z23tools (max-width: 1040px) { .z23-group[data-group="align"], .z23-group[data-group="align"] + [data-r="toolbar-separator"] { display: none; } }
@container z23tools (max-width: 980px) { .z23-group[data-group="lists"] > [data-cmd="outdent"], .z23-group[data-group="lists"] > [data-cmd="indent"], .z23-group[data-group="color"] > [data-cmd="comment"] { display: none; } }
@container z23tools (max-width: 890px) { .z23-group[data-group="color"], .z23-group[data-group="history"], .z23-group[data-group="history"] + [data-r="toolbar-separator"], .z23-group[data-group="marks"] > [data-cmd="code"], .z23-group[data-group="marks"] > [data-cmd="strike"] { display: none; } }
@container z23tools (max-width: 640px) { .z23-group[data-group="lists"], .z23-group[data-group="insert"] > [data-cmd="clearFormat"], .z23-tools [data-r="toolbar-separator"] { display: none; } }
@container z23tools (max-width: 440px) { .z23-group[data-group="mode"] { display: none; } }

/* the document's page: the measure is counted in the text's own size, about 66 characters at 16 px */
.z23 [data-r="page"] { --z23-size: 16px; --z23-measure: 34; --col-prose: calc(var(--z23-measure) * var(--z23-size)); }
.z23 [data-r="page"][data-text-size="14"] { --z23-size: 14px; }
.z23 [data-r="page"][data-text-size="15"] { --z23-size: 15px; }
.z23 [data-r="page"][data-text-size="18"] { --z23-size: 18px; }
.z23 [data-r="page"][data-text-size="20"] { --z23-size: 20px; }
.z23 [data-r="page"][data-width="narrow"] { --z23-measure: 28; }
.z23 [data-r="page"][data-width="wide"] { --z23-measure: 44; }
.z23 [data-r="page"][data-width="full"] { --col-prose: 100%; }
.z23 [data-r="page"][data-width="full"] [data-part="column"] > [data-part="text"] { width: 100%; }
.z23-text { position: relative; }
.z23-sheet { display: flex; flex-direction: column; gap: 20px; min-width: 0; }
.z23 [data-r="page"][data-layout="page"] [data-part="main"] { background: var(--well); }
.z23 [data-r="page"][data-layout="page"] .z23-sheet { padding: 56px 64px 72px; border-radius: var(--r-value); background: var(--paper); box-shadow: 0 0 0 var(--px) var(--line-2), var(--e1); }

/* the title: P23's own, as large as the register goes, in the document's face when the headings follow it */
.z23-title { --prose-gap: 8px; }
.z23-title > .z23-title-text { margin: 0; color: var(--ink); font-size: var(--fs-24); line-height: var(--lh-24); font-weight: var(--fw-550); letter-spacing: -0.01em; text-wrap: balance; overflow-wrap: break-word; outline: none; }
.z23-title > .z23-title-text:empty::before { content: attr(data-placeholder); color: var(--ink-3); pointer-events: none; }
.z23-title > .z23-title-meta { display: flex; flex-wrap: wrap; gap: 4px 12px; color: var(--ink-3); font-size: var(--fs-13); line-height: var(--lh-13); }
.z23-title > .z23-title-meta > span { white-space: nowrap; }
/* the line under the title is the program's, in its own face */
.z23 [data-r="page"] .z23-title > .z23-title-meta { font-family: var(--font); letter-spacing: var(--tracking); font-feature-settings: var(--font-features); }
.z23-title > .z23-title-meta[data-hint] { color: var(--ink-3); }

/* the text: P23's type scale for writing, in em of the chosen size, with line heights per face */
.z23-text [data-part="doc"] { --prose-gap: calc(var(--z23-size) * .75); outline: none; white-space: pre-wrap; overflow-wrap: break-word; min-height: 50vh; padding-bottom: 96px; font-size: var(--z23-size); line-height: var(--z23-lh, 1.6); counter-reset: z23-note; }
.z23 [data-r="page"]:not([data-font="inter"]) :is(.z23-text [data-part="doc"], .z23-title) { font-family: var(--z23-face, var(--font)); letter-spacing: 0; font-feature-settings: normal; }
.z23 [data-r="page"][data-heading-face="inter"] :is(.z23-text [data-part="doc"] :is(h1, h2, h3), .z23-title > .z23-title-text) { font-family: var(--font); letter-spacing: var(--tracking); font-feature-settings: var(--font-features); }
.z23-text [data-part="doc"] :is(h1, h2, h3) { color: var(--ink); font-weight: var(--fw-550); text-wrap: balance; }
.z23-text [data-part="doc"] h1 { font-size: 1.3125em; line-height: 1.3; }
.z23-text [data-part="doc"] h2 { font-size: 1.125em; line-height: 1.35; }
.z23-text [data-part="doc"] h3 { font-size: 1em; line-height: var(--z23-lh, 1.6); }
.z23-text [data-part="doc"] > * + h1 { margin-top: 1.9em; }
.z23-text [data-part="doc"] > * + h2 { margin-top: 1.75em; }
.z23-text [data-part="doc"] > * + h3 { margin-top: 1.4em; }
.z23-text [data-part="doc"] > :is(h1, h2, h3) + * { margin-top: .5em; }
.z23-text [data-part="doc"] :is(ul, ol) { padding-left: 1.5em; }
.z23-text [data-part="doc"] li + li, .z23-text [data-part="doc"] li > :is(ul, ol) { margin-top: .3em; }
.z23-text [data-part="doc"] ul[data-check] { padding-left: 0; }
.z23-text [data-part="doc"] blockquote { padding-left: 1em; }
.z23-text [data-part="doc"] > * + blockquote, .z23-text [data-part="doc"] > blockquote + * { margin-top: 1.1em; }
.z23-text [data-part="doc"] :not(pre) > code { font-size: .875em; }
/* Zibaldone's checklist, callout, table and code markup is its own, so these give it the design system's checkbox, well and table values */
.z23-text [data-part="doc"] ul[data-check] > li > p { flex: 1; min-width: 0; margin-top: 0; }
.z23-text [data-part="doc"] ul[data-check] > li[data-done="true"] > p { color: var(--ink-2); text-decoration: line-through; text-decoration-thickness: 1px; text-decoration-color: var(--ink-3); }
.z23-text [data-part="doc"] [data-callout] { position: relative; padding: 12px 16px 12px 44px; border-radius: var(--r-value); background: var(--well); }
/* a callout's kind: its tint and the icon at its start, which chooses the kind */
.z23-text [data-part="doc"] [data-callout="tip"] { background: var(--label-violet-bg); }
.z23-text [data-part="doc"] [data-callout="warning"] { background: var(--label-yellow-bg); }
.z23-text [data-part="doc"] [data-callout="success"] { background: var(--label-green-bg); }
.z23-text [data-part="doc"] [data-callout="danger"] { background: var(--label-red-bg); }
.z23-text [data-part="doc"] [data-callout] > .z23-callout-kind { position: absolute; left: 12px; top: calc(12px + (var(--z23-size) * var(--z23-lh, 1.6) - 20px) / 2); margin: 0; }
.z23-text [data-part="doc"] [data-callout="tip"] > .z23-callout-kind { color: var(--label-violet-fg); }
.z23-text [data-part="doc"] [data-callout="warning"] > .z23-callout-kind { color: var(--label-yellow-fg); }
.z23-text [data-part="doc"] [data-callout="success"] > .z23-callout-kind { color: var(--label-green-fg); }
.z23-text [data-part="doc"] [data-callout="danger"] > .z23-callout-kind { color: var(--label-red-fg); }
.z23-text [data-part="doc"] [data-callout] > * + * { margin-top: 8px; }
.z23-text [data-part="doc"] [data-callout] > .z23-callout-kind + * { margin-top: 0; }
.z23-text [data-part="doc"] table { width: 100%; border-collapse: collapse; font-size: .875em; line-height: 1.5; }
.z23-text [data-part="doc"] :is(th, td) { padding: 6px 8px; text-align: left; vertical-align: top; }
.z23-text [data-part="doc"] th { color: var(--ink-2); font-weight: var(--fw-550); }
.z23-text [data-part="doc"] pre { padding: 12px 16px; border-radius: var(--r-value); background: var(--well); font-family: var(--font-mono); /* allow: mono · a code block inside the document register */ font-size: var(--fs-13); line-height: var(--lh-13); overflow-x: auto; }
.z23-text [data-part="doc"] hr { border: 0; border-top: var(--px) solid var(--line-1); }
/* Proof's marks carry data-layer, which the design system keeps for popovers (position: fixed), so the mark is put back in the line */
.z23-text [data-proof-mark][data-layer] { position: static; z-index: auto; }
.z23-text [data-proof-mark] { text-decoration-line: underline; text-decoration-style: wavy; text-decoration-thickness: 1px; text-decoration-color: var(--ink-3); text-underline-offset: 3px; }
.z23-compare ins { text-decoration-line: underline; text-decoration-thickness: 2px; text-decoration-color: var(--ink); text-underline-offset: 3px; }
.z23-compare del { color: var(--ink-3); text-decoration-line: line-through; }
.z23 [data-r="page"][data-typewriter="on"] .z23-text [data-part="doc"] { padding-bottom: 50vh; }
.z23 [data-r="page"][data-line="tight"] .z23-text [data-part="doc"] { line-height: calc(var(--z23-lh, 1.6) - .2); }
.z23 [data-r="page"][data-line="loose"] .z23-text [data-part="doc"] { line-height: calc(var(--z23-lh, 1.6) + .3); }
.z23-text [data-part="doc"] > p[data-placeholder]::before { content: attr(data-placeholder); position: absolute; color: var(--ink-3); pointer-events: none; }
.z23-text [data-part="doc"] [data-align="center"] { text-align: center; }
.z23-text [data-part="doc"] [data-align="right"] { text-align: right; }
.z23-text [data-part="doc"] [data-align="justify"] { text-align: justify; }
.z23-text [data-part="doc"] [data-indent="1"] { padding-left: 32px; }
.z23-text [data-part="doc"] [data-indent="2"] { padding-left: 64px; }
.z23-text [data-part="doc"] [data-indent="3"] { padding-left: 96px; }
.z23-text [data-part="doc"] [data-indent="4"] { padding-left: 128px; }
.z23-text [data-part="doc"] [data-tone] { margin-left: -12px; margin-right: -12px; padding: 4px 12px; border-radius: var(--r-value); }
.z23-text [data-part="doc"] [data-tone="blue"] { background: var(--label-blue-bg); }
.z23-text [data-part="doc"] [data-tone="green"] { background: var(--label-green-bg); }
.z23-text [data-part="doc"] [data-tone="purple"] { background: var(--label-violet-bg); }
.z23-text [data-part="doc"] [data-tone="clay"] { background: var(--label-orange-bg); }
.z23-text [data-part="doc"] [data-color="gray"] { color: var(--ink-2); }
.z23-text [data-part="doc"] [data-color="red"] { color: var(--label-red-fg); }
.z23-text [data-part="doc"] [data-color="orange"] { color: var(--label-orange-fg); }
.z23-text [data-part="doc"] [data-color="green"] { color: var(--label-green-fg); }
.z23-text [data-part="doc"] [data-color="blue"] { color: var(--label-blue-fg); }
.z23-text [data-part="doc"] [data-color="purple"] { color: var(--label-violet-fg); }
.z23-text [data-part="doc"] mark { padding: 0 1px; border-radius: 2px; color: inherit; }
.z23-text [data-part="doc"] mark[data-hl="yellow"] { background: var(--label-yellow-bg); }
.z23-text [data-part="doc"] mark[data-hl="green"] { background: var(--label-green-bg); }
.z23-text [data-part="doc"] mark[data-hl="blue"] { background: var(--label-blue-bg); }
.z23-text [data-part="doc"] mark[data-hl="pink"] { background: var(--label-magenta-bg); }
.z23-text [data-part="doc"] mark[data-hl="gray"] { background: var(--well); }
.z23-text [data-part="doc"] u { text-decoration-thickness: 1px; text-underline-offset: 3px; }
.z23-text [data-part="doc"] a[href] { color: var(--accent-ink); text-decoration-line: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.z23-text [data-part="doc"] .ProseMirror-selectednode { outline: none; box-shadow: 0 0 0 2px var(--accent-line); border-radius: var(--r-value); }
.z23-text [data-part="doc"] [data-doc-valgt] { box-shadow: 0 0 0 2px var(--accent-line); border-radius: var(--r-value); }
.z23-text [data-part="doc"] [data-multi] { background: var(--accent-tint); border-radius: var(--r-value); }
.z23-text [data-part="doc"] .ProseMirror-gapcursor { display: none; position: relative; }
.z23-text [data-part="doc"].ProseMirror-focused .ProseMirror-gapcursor { display: block; }
.z23-text [data-part="doc"] .ProseMirror-gapcursor::after { content: ""; position: absolute; top: -2px; width: 20px; border-top: 1px solid var(--ink); }
.z23 [data-r="page"][data-mode="viewing"] .z23-text [data-part="doc"] { caret-color: transparent; }

/* tables: the header row and the cell the caret is in */
.z23-text [data-part="doc"] table { table-layout: fixed; }
.z23-text [data-part="doc"] :is(th, td) { border: var(--px) solid var(--line-2); min-width: 48px; }
.z23-text [data-part="doc"] th { background: var(--well); }
.z23-text [data-part="doc"] td[data-cell-on], .z23-text [data-part="doc"] th[data-cell-on] { box-shadow: inset 0 0 0 1.5px var(--accent-line); }
.z23-text [data-part="doc"] :is(td, th)[data-cell-sel] { background: var(--accent-tint); }

/* images */
.z23-text [data-part="doc"] figure[data-image] { display: flex; flex-direction: column; align-items: center; gap: 6px; margin-left: 0; margin-right: 0; }
.z23-text [data-part="doc"] figure[data-image] > img { display: block; max-width: 100%; height: auto; border-radius: var(--r-value); background: var(--well); }
.z23-text [data-part="doc"] figure[data-image][data-size="wide"] { margin-left: -80px; margin-right: -80px; }
.z23-text [data-part="doc"] figure[data-image][data-size="full"] { position: relative; left: 50%; width: min(96cqw, 1200px); transform: translateX(-50%); }
.z23-text [data-part="doc"] figure[data-image] > figcaption { color: var(--ink-2); font-size: var(--fs-13); line-height: var(--lh-13); text-align: center; }
.z23-text [data-part="doc"] figure[data-image] > figcaption:empty { display: none; }
.z23 [data-r="page"] > [data-part="main"] { container-type: inline-size; }
@container (max-width: 900px) { .z23-text [data-part="doc"] figure[data-image][data-size="wide"] { margin-left: 0; margin-right: 0; } }

/* the page break and the contents */
.z23-text [data-part="doc"] [data-page-break] { position: relative; height: 24px; }
.z23-text [data-part="doc"] [data-page-break]::before { content: ""; position: absolute; left: 0; right: 0; top: 11px; border-top: var(--px) dashed var(--line-4); }
.z23-text [data-part="doc"] [data-page-break]::after { content: "Page break"; position: absolute; left: 50%; top: 4px; padding: 0 8px; transform: translateX(-50%); background: var(--paper); color: var(--ink-3); font-size: var(--fs-11); line-height: var(--lh-11); }
.z23 [data-r="page"][data-layout="page"] .z23-text [data-part="doc"] [data-page-break]::after { background: var(--paper); }
.z23-text [data-part="doc"] nav[data-toc] { padding: 12px 16px; border-radius: var(--r-value); background: var(--well); }
.z23-toc-title { margin: 0 0 6px; color: var(--ink-2); font-size: var(--fs-13); line-height: var(--lh-13); font-weight: var(--fw-550); }
.z23-toc-list { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; }
.z23-toc-list > [data-r="button"][data-level="2"] { margin-left: 16px; }
.z23-toc-list > [data-r="button"][data-level="3"] { margin-left: 32px; }

/* comments, search, suggestions */
.z23-text [data-part="doc"] [data-comment] { background: var(--label-yellow-bg); border-bottom: 2px solid var(--label-yellow-dot); }
.z23-text [data-part="doc"] [data-comment][data-comment-on] { background: var(--label-orange-bg); border-bottom-color: var(--label-orange-dot); }
.z23-text [data-part="doc"] .ProseMirror-search-match { background: var(--label-yellow-bg); border-radius: 2px; }
.z23-text [data-part="doc"] .ProseMirror-active-search-match { background: var(--label-orange-bg); box-shadow: 0 0 0 1.5px var(--label-orange-dot); border-radius: 2px; }
.z23-text [data-part="doc"] ins[data-sugid] { --c: var(--avatar-blue); text-decoration-line: underline; text-decoration-thickness: 2px; text-decoration-color: var(--c); text-underline-offset: 3px; background: color-mix(in srgb, var(--c) 14%, transparent); }
.z23-text [data-part="doc"] del[data-sugid] { --c: var(--avatar-blue); color: var(--ink-2); text-decoration-line: line-through; text-decoration-thickness: 2px; text-decoration-color: var(--c); background: color-mix(in srgb, var(--c) 10%, transparent); }
.z23-text [data-part="doc"] :is(ins, del)[data-af="Anna"] { --c: var(--avatar-violet); }
.z23-text [data-part="doc"] :is(ins, del)[data-af="Ben"] { --c: var(--avatar-aqua); }
.z23-text [data-part="doc"] :is(ins, del)[data-af="Carla"] { --c: var(--avatar-orange); }
.z23 [data-sug-on] { box-shadow: 0 0 0 1.5px var(--c); border-radius: 2px; }
/* a suggested change of formatting: the words carry a line in the author's color, a block a mark in the margin */
.z23-text [data-part="doc"] span[data-fmt] { --c: var(--avatar-blue); background: color-mix(in srgb, var(--c) 12%, transparent); box-shadow: inset 0 -2px 0 var(--c); }
.z23-text [data-part="doc"] [data-sug] { --c: var(--avatar-blue); position: relative; }
.z23-text [data-part="doc"] [data-sug]::before { content: ""; position: absolute; left: -14px; top: 2px; bottom: 2px; width: 3px; border-radius: 2px; background: var(--c); }
.z23-text [data-part="doc"] li[data-sug]::before { left: -40px; }
.z23-text [data-part="doc"] :is(span[data-fmt], [data-sug])[data-af="Anna"], .z23-text [data-part="doc"] [data-sug-af="Anna"] { --c: var(--avatar-violet); }
.z23-text [data-part="doc"] :is(span[data-fmt], [data-sug])[data-af="Ben"], .z23-text [data-part="doc"] [data-sug-af="Ben"] { --c: var(--avatar-aqua); }
.z23-text [data-part="doc"] :is(span[data-fmt], [data-sug])[data-af="Carla"], .z23-text [data-part="doc"] [data-sug-af="Carla"] { --c: var(--avatar-orange); }

/* focus mode: the paragraph with the caret, and the rest quieter */
.z23 [data-r="page"][data-focus="on"] .z23-text [data-part="doc"] > :not([data-here]) { opacity: .35; transition: opacity var(--state-out); }
.z23 [data-r="page"][data-focus="on"] .z23-text [data-part="doc"] > [data-here] { opacity: 1; }

/* a folded section: its heading keeps a mark, the blocks under it are hidden */
.z23-text [data-part="doc"] [data-folded-under] { display: none; }
.z23-text [data-part="doc"] :is(h1, h2, h3)[data-folded]::after { content: " …"; color: var(--ink-3); }

/* the block handle, and the fold of a heading beside it */
.z23-handle { position: absolute; z-index: 3; right: 100%; display: flex; align-items: center; gap: 2px; padding-right: 6px; }
.z23-handle[hidden] { display: none; }
.z23-handle > [aria-expanded="false"][data-out="fold-btn"] > svg { transform: rotate(-90deg); }
.z23-drop-line { position: absolute; z-index: 3; left: 0; right: 0; height: 2px; border-radius: 1px; background: var(--accent); pointer-events: none; }
.z23-dockwrap { position: fixed; z-index: var(--z-popover); left: 50%; bottom: 48px; transform: translateX(-50%); }
.z23-dockwrap[hidden] { display: none; }

/* spelling: a quiet wavy line under a word the dictionary does not know */
.z23-text [data-part="doc"] .z23-misspelt { text-decoration-line: underline; text-decoration-style: wavy; text-decoration-thickness: 1px; text-decoration-color: var(--danger-ink); text-underline-offset: 3px; text-decoration-skip-ink: none; }

/* footnotes: a number in the line, and the notes under the text */
.z23-text [data-part="doc"] sup[data-footnote] { padding: 0 1px; color: var(--accent-ink); font-size: .75em; line-height: 0; }
.z23-text [data-part="doc"] sup[data-footnote]::after { counter-increment: z23-note; content: counter(z23-note); }
.z23-text [data-part="doc"] .z23-notes { margin-top: 2.5em; padding-top: 1em; border-top: var(--px) solid var(--line-2); color: var(--ink-2); font-size: var(--fs-14); line-height: var(--lh-14); }
.z23-text [data-part="doc"] .z23-notes > ol { margin: 0; padding-left: 1.5em; }
.z23-footnote-pop { width: 320px; }

/* the context menus: long ones scroll, and a face's name is drawn in its face */
[data-ctx][data-r="menu"], #z23-fb-color, #z23-code-lang { --menu-max: calc(100vh - 16px); }
/* a menu fading out takes no pointer: the next right-click reaches the text under it */
[data-ctx][data-r="menu"][data-state="leaving"] { pointer-events: none; }
.z23-face-name { flex: none; fill: currentColor; }
#z23-face-list { min-width: 240px; }

/* the + beside an empty line, and the word count of full-screen writing */
.z23-handle > [data-out="plus-btn"][hidden] { display: none; }
.z23-full-count { position: fixed; z-index: var(--z-popover); right: 24px; bottom: 20px; color: var(--ink-3); font-size: var(--fs-12); line-height: var(--lh-12); font-variant-numeric: tabular-nums; opacity: 0; pointer-events: none; transition: opacity var(--opacity-out, .3s) ease-out; }
body:not([data-z23-full]) .z23-full-count { display: none; }
body[data-z23-full] .z23-full-count[data-shown] { opacity: 1; }
body[data-z23-full] .pf-bar, body[data-z23-full] .z23 > [data-r="sidebar"], body[data-z23-full] .z23 [data-r="page"] > [data-part="header"], body[data-z23-full] .z23 [data-r="page"] > [data-part="side"], body[data-z23-full] .z23-bottom, body[data-z23-full] .z23-handle { display: none !important; }
body[data-z23-full] .z23 { grid-template-columns: minmax(0, 1fr); }
body[data-z23-full] .z23-paper { margin: 0; border-radius: 0; box-shadow: none; }
body[data-z23-full] .z23 [data-r="page"] { grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(0, 1fr); grid-template-areas: "main"; }
body[data-z23-full] .z23 [data-r="page"][data-template="document"] > [data-part="main"] > [data-part="viewport"] > [data-part="column"] { padding-top: 12vh; }

/* ── OPS-87: the document scrolls the window, as Trail's host rules ask (a sticky container, its length in the room
   below the sticky top). The portfolio's bar, the page's header, the side panel and the status line stay where they
   are; the card clips its corners without becoming a scroll container ── */
html:has(.z23) { --z23-top: var(--h-44); }
html:has(#app[data-embed]), html:has(body[data-z23-full]) { --z23-top: 0px; }
body:has(.z23) { height: auto; }
/* what scrolls into view (a section Trail jumps to, a found word, a comment's words) stops between the sticky header and the status line */
html:has(.z23) { height: auto; scroll-padding: calc(var(--z23-top) + var(--z23-head, 84px) + 16px) 0 calc(var(--status-bar, 28px) + 24px); }
body:has(.z23) .pf-a { height: auto; min-height: 100vh; }
body:has(.z23) .pf-a > .pf-bar { position: sticky; top: 0; z-index: 40; }
body:has(.z23) .pf-a > main { flex: none; display: block; overflow: visible; min-height: calc(100vh - var(--z23-top)); }
.z23 { height: auto; min-height: calc(100vh - var(--z23-top)); align-items: start; }
.z23 > [data-r="sidebar"] { position: sticky; top: var(--z23-top); height: calc(100vh - var(--z23-top)); }
.z23-work { min-height: calc(100vh - var(--z23-top)); }
.z23-paper { overflow: clip; min-height: calc(100vh - var(--z23-top) - 16px); }
.z23-paper > [data-r="page"] { height: auto; min-height: calc(100vh - var(--z23-top) - 16px); overflow: visible; }
.z23 [data-r="page"] > [data-part="header"] { position: sticky; top: var(--z23-top); z-index: 30; background: var(--paper); }
.z23 [data-r="page"] > [data-part="main"] { min-height: 0; }
.z23 [data-r="page"] > [data-part="main"] > [data-part="viewport"] { position: static; overflow: visible; -webkit-mask-image: none; mask-image: none; }
.z23 [data-r="page"] > [data-part="side"] { position: sticky; top: calc(var(--z23-top) + var(--z23-head, 84px)); align-self: start; height: calc(100vh - var(--z23-top) - var(--z23-head, 84px) - 48px); z-index: 20; background: var(--paper); }
.z23-bottom { position: sticky; bottom: 0; z-index: 30; background: var(--paper); }
.z23 [data-r="page"] > [data-part="main"] > [data-part="thumb"] { display: none; }
body[data-z23-full] .z23-paper, body[data-z23-full] .z23-paper > [data-r="page"], body[data-z23-full] .z23, body[data-z23-full] .z23-work { min-height: 100vh; }

/* ── Trail, the contents rail (source/trail-pkg): sticky under the page's header, 16 px from the content pane's left edge,
   above the text; or the Outline tab of the side panel, chosen in View ── */
.z23-trail-host { position: sticky; top: calc(var(--z23-top) + var(--z23-head, 84px) + 16px); z-index: 26; height: 0; margin-left: 16px; }
.z23-trail-host[hidden] { display: none; }
.z23-trail-host > .trail { position: absolute; left: 0; top: 0; }
.z23 [data-r="page"][data-outline="rail"] [data-tab="outline"] { display: none; }
/* on a phone the text keeps clear of the collapsed rail */
@media (max-width: 600px) {
  .z23 [data-r="page"]:not([data-outline="panel"]) > [data-part="main"] [data-part="column"] { padding-left: 48px; }
}

/* ── OPS-84: the blocks of the / menu ── */
/* a code block: its language at the top right */
.z23-text [data-part="doc"] [data-code-block] { position: relative; }
.z23-text [data-part="doc"] [data-code-block] > .z23-code-head { position: absolute; z-index: 1; top: 4px; right: 4px; }
.z23-text [data-part="doc"] [data-code-block] > .z23-code-head > [data-r="button"] { color: var(--ink-3); }
.z23-text [data-part="doc"] [data-code-block] > pre { margin: 0; padding-right: 128px; }
/* the code inherits the design system's mono from its block: the browser's own <code> face is not used */
.z23-text [data-part="doc"] pre > code { font-family: inherit; font-size: inherit; }
/* the drawing under a diagram or a formula */
.z23-text [data-part="doc"] .z23-live { display: flex; justify-content: center; margin-top: 8px; padding: 16px; border-radius: var(--r-value); box-shadow: 0 0 0 var(--px) var(--line-2); overflow-x: auto; }
.z23-text [data-part="doc"] .z23-live > svg { max-width: 100%; height: auto; }
.z23-text [data-part="doc"] .z23-live[data-state="empty"], .z23-text [data-part="doc"] .z23-live[data-state="loading"] { color: var(--ink-3); font-size: .875em; }
.z23-text [data-part="doc"] .z23-live math { font-size: 1.25em; }
.z23-text [data-part="doc"] span[data-math] { padding: 0 2px; border-radius: 3px; }
.z23-text [data-part="doc"] span[data-math]:hover { background: var(--well); }
.z23-math-pop { width: 340px; }
.z23-grow { flex: 1 1 auto; min-width: 0; }
/* a file kept in the document */
.z23-text [data-part="doc"] [data-file] { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: var(--r-value); box-shadow: 0 0 0 var(--px) var(--line-2); background: var(--paper); }
.z23-text [data-part="doc"] [data-file].ProseMirror-selectednode { box-shadow: 0 0 0 2px var(--accent-line); }
.z23-file-icon { display: grid; place-items: center; flex: none; width: 36px; height: 36px; border-radius: var(--r-value); background: var(--well); color: var(--ink-2); }
.z23-file-text { display: flex; flex-direction: column; flex: 1 1 auto; min-width: 0; }
.z23-file-name { overflow: hidden; color: var(--ink); font-weight: var(--fw-500); text-overflow: ellipsis; white-space: nowrap; }
.z23-file-meta { color: var(--ink-3); font-size: .8125em; }
/* a collapsible section: the title stays, the rest folds */
.z23-text [data-part="doc"] [data-toggle] { position: relative; padding-left: 28px; }
.z23-text [data-part="doc"] [data-toggle] > .z23-toggle-btn { position: absolute; left: 0; top: calc((var(--z23-size) * var(--z23-lh, 1.6) - 20px) / 2); }
.z23-text [data-part="doc"] [data-toggle] > .z23-toggle-btn > svg { transition: transform var(--state-out); }
.z23-text [data-part="doc"] [data-toggle][data-open="true"] > .z23-toggle-btn > svg { transform: rotate(90deg); }
.z23-text [data-part="doc"] [data-toggle] > .z23-toggle-body > :first-child { font-weight: var(--fw-550); }
.z23-text [data-part="doc"] [data-toggle] > .z23-toggle-body > * + * { margin-top: var(--prose-gap); }
.z23-text [data-part="doc"] [data-toggle][data-open="false"] > .z23-toggle-body > :not(:first-child) { display: none; }
/* columns side by side, one under the other on a narrow page */
.z23-text [data-part="doc"] [data-columns] { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.z23-text [data-part="doc"] [data-columns="3"] { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.z23-text [data-part="doc"] [data-column] { min-width: 0; }
.z23-text [data-part="doc"] [data-column] + [data-column] { padding-left: 12px; box-shadow: inset var(--px) 0 0 var(--line-2); }
@container (max-width: 640px) { .z23-text [data-part="doc"] [data-column] + [data-column] { padding: 12px 0 0; box-shadow: inset 0 var(--px) 0 var(--line-2); } }
.z23-text [data-part="doc"] [data-column] > * + * { margin-top: var(--prose-gap); }
@container (max-width: 640px) { .z23-text [data-part="doc"] [data-columns] { grid-template-columns: minmax(0, 1fr); gap: 16px; } }
/* the table's size, beside the / menu */
.z23-table-grid { padding: 8px; }
.z23-grid { display: grid; grid-template-columns: repeat(8, 18px); gap: 3px; }
.z23-grid-cell { width: 18px; height: 18px; padding: 0; border: 0; border-radius: 3px; background: var(--well); box-shadow: inset 0 0 0 var(--px) var(--line-2); }
.z23-grid-cell[data-on] { background: var(--accent-tint); box-shadow: inset 0 0 0 var(--px) var(--accent-line); }
.z23-table-grid > .z23-meta { margin: 6px 0 0; text-align: center; }
/* the selection bar in a code block keeps the style, the comment and the suggestion */
[data-r="format-bar"][data-in-code] [data-fb="text"] { display: none; }
/* on a phone the bar keeps what a thumb reaches for; the rest is in the toolbar and the right-click menu */
@media (max-width: 600px) {
  [data-r="format-bar"] :is([data-cmd="strike"], [data-cmd="underline"], [data-cmd="code"], [data-cmd="style:code"], [data-cmd="clearFormat"]) { display: none; }
  [data-r="format-bar"] { max-width: calc(100vw - 16px); }
}

/* the carets of the others */
.collab-caret { position: relative; margin: 0 -1px; border-left: 2px solid var(--c); word-break: normal; pointer-events: none; }
.collab-caret > [data-r="avatar"] { position: absolute; top: -18px; left: -9px; }
.collab-selection { background: color-mix(in srgb, var(--c) 18%, transparent); }
.z23-flash { animation: z23-flash 1.2s var(--ease-expo, ease-out); }
@keyframes z23-flash { from { box-shadow: 0 0 0 4px var(--accent-tint); } to { box-shadow: 0 0 0 0 transparent; } }

/* the side panel */
.z23-panel { padding: 12px 16px 24px; }
.z23-meta { color: var(--ink-3); font-size: var(--fs-12); line-height: var(--lh-12); }
.z23-between { justify-content: space-between; align-items: center; }
.z23-wrap { flex-wrap: wrap; }
.z23-lvl-2 { padding-left: 14px; }
.z23-lvl-3 { padding-left: 28px; }
.z23-threads, .z23-suggestions { display: flex; flex-direction: column; gap: 12px; }
.z23-threads > [data-r="thread"][data-on] { box-shadow: 0 0 0 1.5px var(--accent-line); border-radius: var(--r-contain); }
.z23-quote { margin: 0 0 6px; padding-left: 8px; border-left: 2px solid var(--label-yellow-dot); color: var(--ink-2); font-size: var(--fs-12); line-height: var(--lh-12); }
.z23-quote[data-state="deleted"], .z23-quote[data-state="changed"] { border-left-color: var(--ink-4); }
.z23-quote-note { display: block; margin-top: 2px; color: var(--ink-3); }
.z23-sug { display: flex; flex-direction: column; gap: 6px; padding: 10px 12px; border-radius: var(--r-contain); box-shadow: 0 0 0 var(--px) var(--line-2); }
.z23-sug[data-on] { box-shadow: 0 0 0 1.5px var(--accent-line); }
.z23-sug-head { display: flex; align-items: center; gap: 8px; color: var(--ink); font-size: var(--fs-13); line-height: var(--lh-13); font-weight: var(--fw-550); }
.z23-sug-head > time { margin-left: auto; color: var(--ink-3); font-size: var(--fs-12); font-weight: var(--fw-450); }
.z23-sug-text { color: var(--ink-2); font-size: var(--fs-13); line-height: var(--lh-13); overflow-wrap: anywhere; }
.z23-sug-text ins { text-decoration-line: underline; text-decoration-thickness: 2px; text-underline-offset: 3px; }
.z23-sug-text del { color: var(--ink-2); }
.z23-empty-note { padding: 24px 8px; color: var(--ink-3); font-size: var(--fs-13); line-height: var(--lh-13); text-align: center; }
.z23-rule + .z23-rule { margin-top: 16px; }
.z23-rule > h3 { font-size: var(--fs-13); line-height: var(--lh-13); font-weight: var(--fw-550); }
.z23-rule > p { margin-top: 2px; color: var(--ink-3); font-size: var(--fs-12); line-height: var(--lh-12); }
.z23-rule > ul { margin-top: 6px; padding: 0; list-style: none; }
.z23-rule > ul > li { display: flex; align-items: center; justify-content: space-between; gap: 4px; }
.z23-rule > ul > li > [data-r="button"]:first-child { flex: 1 1 auto; min-width: 0; overflow: hidden; justify-content: flex-start; }
.z23-rule > ul > li > [data-r="button"] + [data-r="button"] { flex: none; }
.z23-rule > ul > li > [data-r="button"]:first-child > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* the status line */
.z23-zoom { min-width: 36px; text-align: center; }
.z23-goal-meter { display: inline-block; width: 64px; }
.z23 [data-status="off"] { display: none; }

/* floating parts: placed by RAMTT.place */
.z23-caret-menu { width: 300px; max-height: min(440px, 62vh); overflow-y: auto; }
.z23-find { width: 420px; max-width: calc(100vw - 32px); padding: 8px; }
.z23-find-row { display: flex; align-items: center; gap: 2px; }
.z23-find-row + .z23-find-row { margin-top: 6px; }
.z23-find-field { flex: 1 1 auto; min-width: 0; }
.z23-find-options { flex-wrap: wrap; gap: 6px; }
.z23-image-pop { width: 300px; }
.z23-link-address { flex: 1 1 auto; min-width: 0; max-width: 260px; padding: 0 8px; overflow: hidden; color: var(--accent-ink); font-size: var(--fs-13); line-height: 28px; text-overflow: ellipsis; white-space: nowrap; }
.z23-swatches { padding: 4px 8px 8px; }

/* the dialogs */
.z23-count-grid { display: grid; grid-template-columns: minmax(0, 1fr) repeat(2, auto); gap: 6px 20px; font-variant-numeric: tabular-nums; }
.z23-count-grid > span { color: var(--ink-2); font-size: var(--fs-13); line-height: var(--lh-13); }
.z23-count-grid > b { color: var(--ink); font-size: var(--fs-13); line-height: var(--lh-13); font-weight: var(--fw-550); text-align: right; }
.z23-count-grid > [data-head] { color: var(--ink-3); font-size: var(--fs-12); line-height: var(--lh-12); font-weight: var(--fw-500); text-align: right; }
.z23-goal-row { display: flex; align-items: center; gap: 12px; margin-top: 16px; padding-top: 16px; border-top: var(--px) solid var(--line-2); }
.z23-goal-field { width: 140px; flex: none; }
.z23-shortcuts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 32px; max-height: 60vh; overflow: auto; }
.z23-shortcuts h3 { margin: 0 0 6px; color: var(--ink); font-size: var(--fs-13); line-height: var(--lh-13); font-weight: var(--fw-550); }
.z23-shortcuts dl { margin: 0; }
.z23-shortcuts dl > div { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 28px; border-bottom: var(--px) solid var(--line-1); }
.z23-shortcuts dt { color: var(--ink-2); font-size: var(--fs-13); line-height: var(--lh-13); }
.z23-shortcuts dd { margin: 0; flex: none; }
.z23-notice-actions { display: inline-flex; gap: 4px; margin-left: 8px; }

/* a narrow screen: the documents and the side panel are sheets over the page */
@media (max-width: 900px) {
  .z23 { grid-template-columns: minmax(0, 1fr); }
  .z23 > [data-r="sidebar"] { display: none; }
  .z23-paper { margin: 0; border-radius: 0; }
  .z23-text [data-part="doc"] figure[data-image][data-size="wide"] { margin-left: 0; margin-right: 0; }
  .z23 [data-r="page"][data-layout="page"] .z23-sheet { padding: 24px 20px 40px; }
  .z23-shortcuts { grid-template-columns: minmax(0, 1fr); }
  .z23-handle { padding-right: 2px; }
}
@media (max-width: 600px) {
  .z23 [data-r="page"] > [data-part="header"] > [data-part="bar"]:first-child [data-part="title"] { display: none; }
  .z23 [data-r="status-bar"] > [data-part="control"]:has([data-out="zoom"]) { display: none; }
}

/* print: the title and the text, nothing else */
@media print {
  .pf-bar, .z23-trail-host, .trail-line, .z23 > [data-r="sidebar"], .z23 [data-r="page"] > [data-part="header"], .z23 [data-r="page"] > [data-part="side"], .z23 [data-r="status-bar"], .z23-bottom, .z23-handle, [data-part="rail"], [data-r="banner"], .collab-caret, dialog, [data-r="menu"], [data-r="popover"], [data-r="format-bar"] { display: none !important; }
  html, body, #app, .pf-a, .pf-a > main, .z23, .z23-work, .z23-paper, .z23 [data-r="page"], .z23 [data-r="page"] > [data-part="main"], .z23 [data-part="viewport"] { display: block !important; height: auto !important; overflow: visible !important; margin: 0 !important; padding: 0 !important; box-shadow: none !important; background: none !important; }
  .z23 [data-part="viewport"] { position: static !important; -webkit-mask-image: none !important; mask-image: none !important; }
  .z23 [data-part="column"] { display: block !important; padding: 0 !important; }
  .z23-sheet { padding: 0 !important; box-shadow: none !important; }
  .z23-text [data-part="doc"] { min-height: 0; padding: 0; }
  .z23-text [data-part="doc"] [data-page-break] { break-after: page; height: 0; }
  .z23-text [data-part="doc"] [data-page-break]::before, .z23-text [data-part="doc"] [data-page-break]::after { display: none; }
  .z23-text [data-part="doc"] [data-comment] { background: none; border: 0; }
  .z23-text [data-proof-mark], .z23-text [data-part="doc"] .z23-misspelt { text-decoration: none; }
  .z23-text [data-part="doc"] span[data-fmt] { background: none; box-shadow: none; }
  .z23-text [data-part="doc"] [data-sug]::before { display: none; }
  @page { margin: 18mm 20mm; }
  .z23-text [data-part="doc"] [data-folded-under] { display: block; }
  .z23-text [data-part="doc"] h1, .z23-text [data-part="doc"] h2, .z23-text [data-part="doc"] h3 { break-after: avoid; }
}